High-tension-switch mechanism



y 7, 1929- I M. M. SAMUELS 1,711,747

HIGH TENSION SWITCH MECHANISM Filed May 8, 1926 2 Sheets-Sheet l '"llllll ATTORN EY5 umlllnl y 7, 1929- M. M. SAMUELS 1,711,747

HIGH TENSION SWITCH MECHANISM Filed May 8, 1926 2 Sheets-Sheet 2 llllhllllll 1| Hl I [III umnll II Ill l lll mum MURIUEM SZKMUEZJ' BYW a; rm

ATT/JRNE Y5.

Patented May 7, 1929.

UNITED STA l,7ll,747

TES, rz frerrr OFFICE.

MAURICE M. SAMUELS, OF'NEW YORK, N. Y., ASSIGNOR OF ONE-HALF TO ROBERT V.

DUNIBAR, OF BOUNDBROOK, NEW JERSEY.

nIGn-TEnsIoN-swrron MECHANISM.

Application filed May 8,

This invention relates to high tension electrical switches and operating mechanism therefor. I

The objects of this invention include the provision of an improved high tension electrical switch construction and operating mechanism and more particularly the provision of such mechanism which is easy to operate, positive and dependable in its action, and relatively inexpensive and simple in construction. 7 7 Further and more specific and advantages will more clearly appear from the detailed description given below taken in connection with the accompanying drawings which form a part of this specification.

In the drawings, Fig. 1 comprises anend elevational view of one form of mechanism embodying the invention;

Fig. 2 is a plan view showing the construction of, and the manner in which a plurality of units embodying the invention may be associated; and

Fig. 8 is an elevational view partly broken away showing a modified embodiment of the invention. 7 1

Referring to Fig. 1, a high tension switch blade of any suitable construction is indicated at 10 and is secured upon a rock shaft 11. The rock shaft may be supported in any well known manner as by bearings 12 and 13 (see Fig. 2). The bearings in turn are mounted upon high tension insulator columns as at 1 1.

A suitable connection terminal 15 may be provided adjacent the bearings and electrically connected to the switch blade 10 through a flexible p igtail 16 or other suitable,

means. i

At the other side of the switch structure an insulator column or columns as at 1'7 is surmounted by a terminal member 18 having suitable jaw clips 19 for engagement with the switch blade 10. Suitable cooperating horn gap members 20 and 21 may be provided respectively upon the terminal member 18 and the switch blade 10 if desired.

The terminal members 15 and 18 respectively may be connected to the line wires 22 and 23 in any desired conventional manner. These line wires respectively may be mechanically secured to a switch frame structure 24 by high tension strain insulators 25 and 26 of any suitable type. The insulator columns 14 objects, features- 1926. Serial No. 107,538. I

and 17 may also be mounted upon the struc ture24.

. The shaft 11 may be provided with a suitable rockable member, as for example the sprocket 27 over which a sprocket chain 28 extends. The sprocket chain at each side of the sprocket respectively may be provided with groups of insulator units 29 and 30, the units being placed in series, and connected in the sprocket chain.

The sprocket chain with the insulators 29 and 30 may be directly and manually operated or operated through any suitable mechanism, one example of which will now; be described.

' The sprocket chain with the series of insulator units. may be extended as by the chain 81 which extends over a sprocket 32 rotatably mounted upon a shaft 33. The shaft 33 may be mounted in suitable bearings upon the frame member 24. This same shaft may exin Fig. 2 and if desired, three complete switch blades and assemblies may be operated thereby upon rocking the shaft. The switch assembly above described, -together with the switch assemblies 34: and 35, may be so connected as to open or close the line wires of a high tension three phase circuit. All. of the three bladesmaybe simultaneously and easily and quickly operated to break the circuit by rocking the shaft 33. I i a Any suitable mechanism may be provided for rocking the shaft 33.' In the example here shown a sprocket 3,6 is provided to cooperate with a chain 37, which in turnv engages a sprocket 33 for operating a counter-shaft 39. The counter-shaft 39 may in turn be operated by an additional sprocket 40 cooperating with a chain 41. If desired, additional insulating means or grip portions as at .22 and 43 may be.

provided in the chain 41. This chain may be operated by a sprocket 44c and lever handle 45 located in a position conveniently reached by the operator. This position may be either adjacent to the switch frame 24 or at some relatively remote location, if desiredL Movement of the handle and other parts in the directions indicated by the arrows will cause the switches to open, as will be readily understood. The switches may be closed by re verse movements. I

While with the switch gear above described the various mechanical connections are made by means of sprockets and chains,

it will be understood that in most instances other suitable mechanical equivalents may, it desirable, be substituted therefor, such as pulleys, rock arms, belts and tensioned pull rods. In Fig. 3, "for instance, a constructlon is illustrated wherein the rockable sprocket 27 has been replaced by a rock arm 27. The

chain 28 has been replaced by pull rods 28" and 28 pivotally attached to the rock arm.

As above indicated, the mechanism herein described is particularly designed for use in high tension electrical installations, the po tentials of which may range from in the neighborhood of 10,000 volts up to the highest practical potential which may be used in transmitting power over distances.

From the above itwill be noted that improved switch operating means of the type indicated is provided in a form suitably insulated by the groups of insulator units to amply protect the operator. W hen the operator places one of the groups of insulator units, as the group 30, under suiiicient mechanical tension, the switch arm will be moved to one of its operating positions, whereas when the other group ofunits 29 is tensioned, the switch arm may be returned to its former position. In each instance the operating force is applied by placing one of the groups of insulator units under tension. It is therefore unnecessary to provide insulator groups built to withstand compression or torsion. The insulator units may therefore be of the relatively inexpensive suspension type tied together in a series in any suitable manner and with any dc sired number of units in the series. Depending upon the potential of the line, this number may be readily varied to suit the operating conditions, thus making possible ad vantages in standardization of parts for vari ous installations.

It will furthermore be appreciated that with modern high potential circuits the necessary insulators are of considerable Weight and bulk and, accordingly, it rapid and easy operation is to be effected, the parts should preferably be substantially counterbalanced. According to this invention, one group 0finsulator-units may serve to substantially counterbalanre the other. Accordingly, the operator is enabled to rapidly and easily move the parts, thus facilitating a quick break at the switch contacts. I

lVhile I have described my improvements in great detail and with respect to certain pre terred formsthereot, I do not desire to be limited to such forms or details, since many changes and modifications may bemade and the improvements embodied in widely different forms without departing from the spirit and scope or the invention in itsbroader aspects. Hence, I desire to cover all modifications and forms coming within the langauge or scope of any one or more of the appended claims.

lVhat I claim as new and desire to secure by Letters Patent of the United States is 1. High tension electrical switch apparatus having a switch member and means for operating the same comprising two insulator groups each embodying a plurality of high tension insulator units connected in series, one end of each group being attached to switch parts carrying high tension and the other end being attached to manually operable parts, said groups being connected respectively to pull said switch to its circuit opening and its circuit closing positions whereby the series of insulator units in each instance is merely tensioned in the operation of the switch.

2. High tension electrical switch apparatus havin a switch member and means for operating the same comprising two insulator groups each embodying a plurality of high tension insulator units connected in series, one end of each group being attached to switch parts carrying high tension and the other end being attached to manually operable parts, said groups being connected respectively to pull said switch to its circuit opening and its circuit closing positions whereby the series of insulator units in each instance is merely tensioned in the operation of the switch, and a lever for actuating both of said groups to operate the switch. V

In testimony whereof I have signed my name to this specification.

MAURICE M. SAMUELS. 

